Leene, 1936
Carapace densely pubescent; transverse granular lines on frontal, protogastric, and mesogastric regions, epibranchial line interrupted only at the cervical groove, cardiac and each mesobranchial region with 1 such line; front with 6 teeth, medians and submedians truncate, laterals rounded; antero-lateral borders with 7 acute teeth, second and fourth very much smaller than the remainder, fifth the largest; postero-lateral junctions rounded. Antennal flagellum excluded from orbit. Cheliped merus with 3 strong spines on anterior border, posterior border granulate; carpus with a strong internal spine, outer border with 3 spinules; palm with 4 spines on upper border. Merus of swimming leg with a strong subdistal posterior spine, propodus with about 10 denticles on posterior border. (Türkay 1995)
Antennal flagellum excluded from orbital hiatus, basal antennal joint with large granules; frontal teeth truncate; posterior border of cephalothorax curved, forming curved postero-lateral junction; 5 large and 2 or 3 very small antero-lateral teeth; transverse cardiac and mesobranchial ridges present on carapace behind epibranchials. (Davie 1999)
Type locality: Jiddah, Red Sea.
Range: Red Sea - Jiddah (Leene, 1938); Madagascar - Nosy Iranja, Toliara and Tôlanaro (Crosnier, 1962); Japan - Northern Daito-jima (Sakai, 1939), Hachijo-jima (Sakai, 1954), Kii Minabe, Yoron-jima and Northern Daito-jima (Sakai, 1976a); Taiwan - Lan-Yü (Huang & Yu, 1997); China - Paracel Islands (Yang et al., 1979, Dai & Yang, 1991); Caroline Islands - Ifalik Atoll (Stephenson, 1976); Australia - Yonge Reef and One Tree Islands, Capricorn Group; shallow waters.